Joint.



J. GOPPERSMITH.

JOINT.

APPLICATION IILED MAY 3, 190a. RENEWED FEB. 14, 1910.

9 n Patented 211222, 1910,

wi'tmzooco G5 I, 014 507;

UNITED earns arr JACOB COPPERSMITH, F COLLINWOOD, CHIC ASSIGNOR OF ONE-HALF TO 0. W.-

COPPERSMITH, OE COLLIN'WOOD, OHIO.

JOINT.

Specification of Letters Patent.

Patented Mar. 22, 1910.

Application filed May 3, 1909, Serial No. 493,560. Renewed February 14, 1910. Serial No. 543,991.

To all whom it may concern: I

Be it known that I, JACOB GoPPnnsMrrH,

' a. citizen of the United States, residing at Collinwood, in the county of Cuyahoga, in d the State of Ohio, have invented certain new and useful Improvements in Joints, of which the following is a specification.

This invention relates to oints, and conslsts in certain improvements in the construction thereof as'will be hereinafter fully described and pointed out in the claims.

The invention is particularly adapted for pipe joints, and in the accompanying drawings is so illustrated.

Figure 1 shows a side elevation partly in section of a joint formed according to my invention. Fig. 2 a plan view of the expanding ring used in the joint.

1 marks the female member. This has the 2 tscrew threads 2, into whichthe pipe 3 is screwed.

4 marks the male member. This has the screw threads 5 onto which the pipe fitting 8 is screwed. The female member has the shoulder 7 on which is arranged the annular joint surface 8, and opposed to this is the annular joint surface 10 on the shoulder 9 of the male member 4. The fitting 6 forms a shoulder 11 on the male member. This is opposed to the shoulder 12 on the female member. The surfaces of these shoulders I term the. take up surfaces. to distinguish them from the joint surfaces. One of these surfaces, as shown on the surface of the shoulder 12, is tapered preferably forming the larger space toward the axis.

A split spring'ring is arranged in the space between the take up surfaces, the ring is normally larger than these surfaces, and

' 40 .is compressed as it is put in place, so that it tends to expand, and thus crowds itself toward the narrow part of the space between the take up surfaces. In this way the joint is kept constantly tight, the pressure being s5. such as will be exerted by the spring acting -'opening of the joint, so that the joint is- On the wedge forming the tapered surfaces. On the other'hand' the spring being interposed between these surfaces prevents the nrrn. j

a female member, said members having opposing annular joint surfaces, and opposing annular take up surfaces tapered relatively to each other; and asplit spring ring interposed between the take up surfaces and tensioned to force itself toward the narrower part of the space between the take up surfaces.

2. A joint comprising a male member and a female member, said members having opposing annular joint surfaces, and opposing annular take up surfaces-tapered relatively to each other with the wider part of the space between the take up surfaces toward the axis of the joint; and a split spring ring "interposed between the take up surfaces,

said ring being normally compressed and tending to force itself outwardly toward the narrower take up surfaces.

3. A joint comprising a tubular male part of the space between the member, and a female member surrounding r the male member, said members having opposing annular joint surfaces, and opposing annular take up surfaces tapered relatively to each other; and a split spring ring interposed between the take up surfaces and tensioned to force itself toward the nar-' rower part ofthe space between the take up surfaces.

' 4. A joint comprising a male member having a shoulder 9 with j'ointsurfaces 10 I thereon, and screw threads 5; a-female memher having the shoulders .7 with the joint surfaces 8 opposing the joint surfaces 9, said female member being screw threaded at 2; a fitting 6 screwed onto the male member and forming a shoulder 11, the surfaces betweefi the shoulder 11 and th :Eemzile hiuid in the presence o f two subscribing 1;-b n c-fia re i e ativelyfliq fl hw omen-and. a" s,p1' 1ng' ;.arr,imged ib"t'yyee1i these surfaces and tensmned. ta "force" itself'toj 5 warithq pgngpyqg; part of thespace! H tween'th'e I In testimony whereof I have hreuptq set 

